feat: show new chat in header (#39)

<img width="1161" alt="image"
src="https://github.com/landing-ai/vision-agent-ui/assets/132986242/a9d9026f-9bff-4a47-a349-23c96ca85e03">

app/layout.tsx

@@ -51,7 +51,7 @@ export default function RootLayout({ children }: RootLayoutProps) {
           disableTransitionOnChange
         >
           <div className="flex flex-col min-h-screen">
-            {!process.env.NEXT_PUBLIC_IS_HUGGING_FACE && <Header />}
+            <Header />
             <main className="flex flex-col flex-1 bg-muted/50">{children}</main>
           </div>
           <TailwindIndicator />

components/Header.tsx

@@ -16,6 +16,16 @@ import { redirect } from 'next/navigation';
 export async function Header() {
   const session = await auth();
   const { isAdmin } = await authEmail();
+
+  if (process.env.NEXT_PUBLIC_IS_HUGGING_FACE) {
+    return (
+      <header className="sticky top-0 z-50 flex items-center justify-end w-full h-16 px-8 border-b shrink-0 bg-gradient-to-b from-background/10 via-background/50 to-background/80 backdrop-blur-xl">
+        <Button variant="link" asChild className="mr-2">
+          <Link href="/chat">New Chat</Link>
+        </Button>
+      </header>
+    );
+  }
   return (
     <header className="sticky top-0 z-50 flex items-center justify-end w-full h-16 px-8 border-b shrink-0 bg-gradient-to-b from-background/10 via-background/50 to-background/80 backdrop-blur-xl">
       {/* <Tooltip>

components/chat/ChatList.tsx

@@ -25,7 +25,11 @@ export function ChatList({ messages, session }: ChatList) {
               {!process.env.NEXT_PUBLIC_IS_HUGGING_FACE ? (
                 <p className="text-muted-foreground leading-normal">
                   Please visit and login into{' '}
-                  <Link href="https://va.landing.ai/" className="underline">
+                  <Link
+                    href="https://va.landing.ai/"
+                    target="_blank"
+                    className="underline"
+                  >
                     our landing website
                   </Link>{' '}
                   to save and revisit your chat history!